Junior Olavo João Frederico Ramos, Veiga Natália Soares, Alvares Thiago Silveira
Nutrition and Exercise Metabolism Research Group, Multidisciplinary Center UFRJ-Macaé, Federal University of Rio de Janeiro, Estrada do Imburo, s/n, Macaé City, Rio de Janeiro, 27979-000, Brazil.
Multicenter Graduate Program in Physiological Sciences, Federal University of Rio de Janeiro, Macaé City, Brazil.
Eur J Nutr. 2025 Aug 6;64(6):251. doi: 10.1007/s00394-025-03767-x.
Jaboticaba berries have demonstrated high antioxidant activity, with potential health benefits. However, their functional properties have not been demonstrated in humans.
This study aimed to examine the effect of jaboticaba berry juice (JBT) intake on recovery from exercise-induced muscle damage (EIMD), which is known to increase oxidative stress, muscle soreness, decrease muscle function, and muscle quality.
Twenty-four trained participants were randomly allocated to consume 250 mL of JBT (containing approximately 1300 mg of total polyphenols) or a fruit-flavored placebo drink (PLA) for 7 days. On day 4, participants performed 6 × 10 maximal isokinetic eccentric contractions of the elbow flexors. Plasma-reduced glutathione (GSH), myoglobin (Mb), muscle soreness (DOMS), maximal isokinetic voluntary contraction (MVC), and functional (MQ) and morphological (MQ) muscle quality were assessed before and 2 h, 24 h, 48 h, and 72 h after EIMD.
The EIMD protocol increased Mb levels (p < 0.001) and DOMS (p < 0.001) and reduced GSH levels (p < 0.001), MVC (p < 0.001), MQ (p < 0.001), and MQ (p= 0.028). JBT intake increased GSH levels (p = 0.001), decreased DOMS (p < 0.041), and accelerated the recovery of muscle strength (p = 0.004) and functional muscle quality (p = 0.002) and morphological (p = 0.006) in the following days after the eccentric exercise when compared to control.
The consumption of jaboticaba berry polyphenols may alleviate the symptoms of muscle damage in resistance-trained participants.
Brazilian Registry of Clinical Trials (ReBEC) (RBR-9fjqvng).
嘉宝果具有较高的抗氧化活性，对健康可能有益。然而，其功能特性尚未在人体中得到证实。
本研究旨在探讨摄入嘉宝果汁（JBT）对运动诱导的肌肉损伤（EIMD）恢复的影响，已知EIMD会增加氧化应激、肌肉酸痛，降低肌肉功能和肌肉质量。
24名受过训练的参与者被随机分配饮用250毫升JBT（含有约1300毫克总多酚）或水果味安慰剂饮料（PLA），为期7天。在第4天，参与者对肘屈肌进行6×10次最大等速离心收缩。在EIMD前以及EIMD后2小时、24小时、48小时和72小时评估血浆还原型谷胱甘肽（GSH）、肌红蛋白（Mb）、肌肉酸痛（DOMS）、最大等速随意收缩（MVC）以及功能性（MQ）和形态学（MQ）肌肉质量。
EIMD方案使Mb水平升高（p<0.001）和DOMS增加（p<0.001），并降低了GSH水平（p<0.001）、MVC（p<0.001）、MQ（p<0.001）和MQ（p = 0.028）。与对照组相比，摄入JBT可提高GSH水平（p = 0.001），降低DOMS（p<0.041），并在离心运动后的接下来几天加速肌肉力量（p = 0.004）、功能性肌肉质量（p = 0.002）和形态学（p = 0.006）的恢复。
摄入嘉宝果多酚可能减轻抗阻训练参与者的肌肉损伤症状。
巴西临床试验注册中心（ReBEC）（RBR-9fjqvng）。
